The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Sep. 06, 2022
Seiko Epson Corporation, Tokyo, JP;
Junichi Wakabayashi, Ueda, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projector includes a lamp unit, a color separation system that separates first light outputted from the lamp unit into a plurality of color beams, a plurality of liquid crystal panels that modulate the plurality of separated color beams from the color separation system, reduction optical systems that reduce at least one of pencils of light formed of the plurality of color beams modulated by the plurality of liquid crystal panels, a light combining prism that combines the plurality of reduced color beams with one another, and a projection lens that projects second light that is the combined light from the light combining prism. The reduction optical systems are disposed between the liquid crystal panels and the light combining prism, and the area of an effective display region of each of the liquid crystal panels is greater than an effective area of each light incident surface of the light combining prism.